Portion of a shoe midsole



FIG. 1 is a front perspective view of a first embodiment of a portion of a shoe midsole showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view of one side thereof;

FIG. 4 is side elevational view of the other side thereof;

FIG. 5 is a front perspective view of a second embodiment of a portion of a show midsole showing my new design;

FIG. 6 is a rear perspective view thereof;

FIG. 7 is a side elevational view of one side thereof; and,

FIG. 8 is a side elevational view of the other side thereof.

The unshaded areas in the claimed regions shown FIGS. 1-3 are for illustrative purposes only and form no part of the claimed design. The uneven broken line immediately adjacent to the shaded area represents a portion of the unclaimed boundary of the design. The broken line showing of the shoe upper and the remainder of the shoe sole is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe midsole, as shown and described. 